Create find-broken-links.yml

.github/workflows/find-broken-links.yml

@@ -0,0 +1,18 @@
+name: Check for broken references
+
+on:
+  push:
+  pull_request:
+
+jobs:
+  check:
+    runs-on: ubuntu-latest
+    
+    steps:
+      - name: Checkout code
+        uses: actions/checkout@v3
+      - name: Find broken references
+        run: |
+          if grep -r --exclude-dir=.github "broken-reference" . ; then
+            exit 1
+          fi